Finding the Fourth Proportional to 87,121.05, 130,691.30 and 27,935.97
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Solution
The fourth proportional to 87,121.05, 130,691.30 and 27,935.97 is: 41,907.07
Step by Step Solution
- Step 1: Write the proportion equation
87,121.05 : 130,691.30 = 27,935.97 : x - Step 2: Convert to fraction form
87,121.05/130,691.30 = 27,935.97/x - Step 3: Cross multiply
87,121.05x = 130,691.30 × 27,935.97 - Step 4: Simplify right side
87,121.05x = 3,650,988,096.38 - Step 5: Solve for x
x = 3,650,988,096.38/87,121.05 - Step 6: Final answer
x = 41,907.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.